While it is uncommon compared to other activities like yoga or meditation, lucid dreaming has had a bit of an uptick in popularity in the past decade. 2016 had upwards of 60 books published that focus on lucid dreaming and other forms of dreamwork. Additionally, I’ve seen that 70% or people have had a lucid dream (Some People Are Using Lucid Dreams To Be More Productive While They Sleep), though I believe that statistic is for people who have had a lucid dream, NOT people who are actively pursuing it. We’ve also seen several lucid dreaming headbands/mask, as well as dozens of apps, come out in the past 5–10 years. There has also been several movies and TV shows that use lucid dreaming as a main plot point.
But all that said, I agree, it is far too uncommon for the amazing experience that it is. I think that this is due to the culture that we live in (I’m speaking to western culture here in America). We just don’t give that much attention to our dreams. If we have a nightmare, we’re told to “not worry, it was just a dream.” Rarely do we discuss what we dreamed over the breakfast table. Our attention span is shortening and we’re becoming busier than ever and lucid dreaming is a practice that requires patience and a present mindset. We’ve essentially been training our whole lives not to worry or focus on our dreams.
In talking with and teaching people how to lucid dream, I’ve found that many, many folks have had at least one lucid dream, but because of cultural upbringing, they haven’t felt comfortable or even interested in sharing their lucid dream. A lot of people don’t realize that it is a unique experience that can be practiced and improved upon, so after their first lucid dream, they kind of forget about it.
But I do see this shifting. Every year, more and more lucid dreaming books are bought, more online classes pop up, more members join the message boards, more LD technology comes out — it is becoming less uncommon.